Southern Plains Woodrat

Neotoma micropus

LCLeast Concern

Southern Plains woodrats are big-eared packrats that build fortress-like stick houses across hot, open country. Their homes turn exposed cactus scrub and grassland into sheltered places for feeding, resting, and raising young. Records from the southern Great Plains and Chihuahuan Desert edge show where people have found these nocturnal builders, when reports occur, and how they use both low plains and higher rocky country.

Range through the year

Where Southern Plains Woodrat is seen

Southern Plains Woodrat is recorded in 5 US states from 739 occurrence records, most heavily in Texas (376 records) and Oklahoma (221).

Current range739 records · 5 states
AlabamaArizonaArkansasCaliforniaColorado · 1 records · view state pageConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaIdahoIllinoisIndianaIowaKansas · 29 records · view state pageKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew Mexico · 112 records · view state pageNew YorkNorth CarolinaNorth DakotaOhioOklahoma · 221 records · view state pageOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexas · 376 records · view state pageUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingAlaskaAKHawaiiHIPuerto RicoPR
Occurrence data by state and month
Southern Plains Woodrat – occurrence records by US state and month (739 total across 5 states)
StateJanFebMarAprMayJunJulAugSepOctNovDecYear
Texas162049231510483579402813376
Oklahoma3··1717620211739··221
New Mexico44·1217814161310122112
Kansas··34766·1·2·29
Colorado····1·······1

Based on 3,028 georeferenced US records, 2000-2026. Shading is observation density (where people record sightings), not true abundance. Alaska, Hawaii & Puerto Rico shown as insets.

Explore by state

Southern Plains Woodrat across 5 states

Occurrence records, conservation status, and the places it turns up, state by state. Open a state for detail, or visit its full page.

  • TexasNativeCommon1,423 records

    State rankSecure

    Notable placesPermanent University Fund · San Angelo State Park · Big Bend National Park · Caprock Canyons State Park

    Countiesrecorded in 12

    Year-round in Texas, with recorded sightings peaking in March, with a smaller rise in July and September–October.

  • New MexicoNativeOccasional621 records

    State rankApparently Secure

    Notable placesWhite Sands National Park · State Trust Land · Cibola National Forest · Carlsbad Caverns National Park

    Countiesrecorded in 12

    Year-round in New Mexico, with recorded sightings peaking in June–November, with a smaller rise in April.

  • OklahomaNativeCommon512 records

    State rankUnranked

    Notable placesCLO Lands · Boiling State Parkrings State Park · Packsaddle Wildlife Management Area · Little Sahara State Park

    Countiesrecorded in 12

    Year-round in Oklahoma, with recorded sightings peaking in September.

  • KansasNativeCommon352 records

    State rankApparently Secure

    Notable placesMeade State Park · Hamilton State Fishing Lake And Wildlife Area · Clark Wildlife Area · Scott Wildlife Area

    Countiesrecorded in 12

    Year-round in Kansas, with recorded sightings peaking in June–July.

  • ColoradoNativeRare120 records

    State rankVulnerable

    Notable placesTwo Buttes

    Countiesrecorded in 8

    Year-round in Colorado, with recorded sightings peaking in May–July.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

SizeSouthern Plains Woodrat beside a 1.8 m adult, drawn to scale
Created by potrace 1.16, written by Peter Selinger 2001-2019 Created by potrace 1.16, written by Peter Selinger 2001-2019
Body length
21–21 cm8 in–8 in
Weight
203–203 g7.2–7.2 oz

Silhouettes drawn to scale against a 1.8 m5 ft 11 in adult.

Elevation

From 200 georeferenced records, the Southern Plains Woodrat is recorded from 5 m16 ft to 2,135 m7,005 ft, with half of sightings below 768 m2,520 ft.

Each band shows the share of georeferenced sightings that fall within it. Records cluster where people live and hike, so low, populated elevations are over-represented. Read this as observation density, not true abundance.

Observation peakOctober63 records

Seasonality from research-grade observation dates across the US (63 records, all years). Reflects when the species is recorded, not a guarantee of presence.

Best encounter

Where and when to see a Southern Plains Woodrat

Your best chance: Texas, in October.

Where
TexasTX
When
October
Trophic relationshipsFood web What a Southern Plains Woodrat eats, and what eats it.
Eaten by3
This speciesSouthern Plains Woodrat

A sample of documented feeding relationships, filtered to species that also occur in the US. Diet and predators vary by region and season, and this is not a complete list, many animals eat, and are eaten by, more than what has been formally recorded here.

Life history

The Southern Plains Woodrat (203 g7.2 oz) is a herbivore that first breeds around 0.4 years, carries a 35-day gestation, and bears about 2.2 young per litter. Maximum recorded longevity is 9.5 years.

Life cycle

  1. Gestation35 days
  2. Birthlitter of 2.2 young
  3. Sexual maturity0.4 yr (female) · 0.3 yr (male)
  4. Typical lifespan9.5 years
  5. Maximum recorded longevity9.5 years

Reproduction

Gestation
35days
Litter size
2.2youngaverage
Litters / year
2litters
Age at first breeding
0.4years♀ 0.4 · ♂ 0.3 yr

Diet composition

Herbivore

By foraging composition: 70% plant material, 20% seeds & grain, 10% invertebrates.

  • Plant material70%
  • Seeds & grain20%
  • Invertebrates10%

Most active at night.

Typical values for the species, not local measurements. Maximum longevity is the longest lifespan on record; most individuals live far less.

Commonly confused with

Animals people sometimes mistake for the southern plains woodrat, and how to tell them apart.

How to recognize a southern plains woodrat

Look for a rounded rodent with large ears, dark eyes, long whiskers, and a blunt muzzle. Its upper coat is gray or gray-brown, while the underside is paler. It is much larger and heavier-headed than a house mouse or deer mouse. The long tail is furry, not naked and scaly like a Norway rat’s, and often looks paler below.

Color and location help separate similar woodrats. Eastern woodrats usually look warmer brown, with a bolder white chest. White-throated woodrats have cleaner white on the throat and chest and stronger gray-brown contrast. Mexican woodrats overlap along the western edge, but usually have larger ears and a more sharply two-toned tail.

Southern plains woodrat on dry grassland soil
A daylight view shows the gray coat, rounded ears, and furred tail that separate southern plains woodrats from smaller mice and naked-tailed rats. Photo: Clifton Ladd, C.W.B., CC BY 4.0.

Stick houses in thorn country

The best clue is often the house rather than its owner. A woodrat piles sticks, cactus pieces, grass, dung, bones, and found debris around hidden chambers. A mature structure can stand several feet high. Its deep passages soften temperature swings and provide cover from owls, snakes, foxes, ringtails, and other hunters. Prickly pear or thorny shrubs add another defensive layer.

These aren’t random trash heaps. Houses stand where cover, food, and escape routes meet, often beneath cactus, mesquite, or juniper. Woodrats also build along fences, rocky cuts, brush piles, and old structures. In open pasture or desert scrub, one mound may offer the only dense cover nearby. Its empty chambers can later shelter insects, reptiles, and other small mammals.

Southern Plains woodrats live from Texas and Oklahoma west into New Mexico and north to Kansas and Colorado. They favor dry grassland, thorn scrub, rocky outcrops, desert margins, brushy draws, and ranch edges. They don’t need closed forest. They do need building material, protective structure, and enough plants to carry them through dry periods. Records cluster on the plains, but higher reports show that rocky uplands can also provide suitable pockets.

Night work, cactus meals, and stored food

Southern Plains woodrats are mainly nocturnal. They spend daylight inside a house or nearby shelter. After dark they climb, cut plants, drag material, and feed along protected routes. Their food includes cactus pads and fruit, mesquite beans, seeds, grasses, leaves, and other dry-country plants. They also eat some small invertebrates when available.

Collecting isn’t decoration. Woodrats store food, line nest chambers, block entrances, and strengthen walls with useful objects. Around ranches or buildings, wire, cloth, paper, and plastic may join the natural pile. This habit can frustrate people near sheds, but it helps woodrats survive where food and shade are patchy.

Their nightly work leaves signs. Clipped cactus pads, gnawed fruit, cut stems, and fresh additions to a house suggest recent activity. Moving and storing plants also shifts seeds and plant matter around each animal’s home area.

Southern plains woodrat on a night camera near potted plants
A night camera catches the long furred tail and low, cautious posture typical of a foraging woodrat. Photo: Jo Roberts, CC BY 4.0.

Breeding inside the house

The house is also a nursery. Females line protected chambers with softer plants and usually raise two or three young. Pregnancy lasts a little over a month. A female may have more than one litter in a favorable season. Breeding still depends on food, cover, and weather. Dry years reduce green growth, while warm, wet periods can improve forage and nesting material.

Young woodrats first explore a world of passages, cover, and scent trails. Staying close to the house limits their exposure. Hidden routes let adults and young retreat quickly when danger appears. Animals leaving home face a harder problem. They must find food, cover, and building material before a predator finds them.

Conservation status and coexistence

The IUCN lists the Southern Plains woodrat as Least Concern. Its use of thorn scrub, pasture edges, cactus patches, and rural structures helps it persist in working landscapes. It still depends on rough cover. Clearing fences, cactus, mesquite, and native scrub can remove both shelter and food.

People often notice woodrats when a stick house appears beside a shed, under equipment, or near a fence. Around buildings, they may chew materials or collect objects, creating the same problems as other rodents. In open country, that behavior has a different meaning. A house beneath prickly pear shows that the landscape still offers rough cover and varied plant life.

Data & sources

The data and visualizations on this page draw on these open sources: